question_answer

\[{{(r+1)}^{th}}\]term in the expansion of \[{{(1-x)}^{-4}}\] will be

A)  \[\frac{\left( r+1 \right)\left( r+2 \right)\left( r+3 \right)}{6}{{x}^{r}}\]

B)  \[\frac{\left( r+2 \right)\left( r+3 \right)}{2}{{x}^{r}}\]

C)  \[\frac{{{x}^{r}}}{r!}\]

D)  None of these